Books with X in the title

201008171645

Joshua Glenn says, "I've been scanning and posting the covers of my "File X" collection – i.e., paperback novels from the 1940s-70s the titles of which include a freestanding letter "X." Interesting to note that three or four of the SF novels in my collection were retitled at some point to get that sexy "X" in there…

HiLowbrow: File X